	2" Commercial Duty	2" Commercial Heavy Duty	3" Industrial

Tracks Welded, made of galvanized steel and secured with mounting brackets	2" (50 mm), 14 gauge	2" (50 mm), 13 gauge	3" (76 mm), 12 gauge
Reinforcement for horizontal tracks. 2" x 2" (50 mm x 50 mm) steel bracket	13‑gauge	Door weight: under 500 lb (225 kg) = 13 gauge	Door weight: under 650 lb (250 kg) = 13 gauge over 650 lb (250 kg) = 8 gauge 1
Hinges Galvanized steel	13‑gauge	13‑gauge	13‑gauge
Rollers Industrial type	With ball bearings
Springs Torsion type	10,000‑cycle spring supported by a 1" (25 mm) 14 gauge steel tube	10,000‑cycle spring supported by a 1" (25 mm) 2 solid zinc‑plated keyway shaft 2	10,000‑cycle spring supported by a 1" (25 mm) 2 solid zinc‑plated keyway shaft 2
Struts In galvanized steel, installed on door sections	From 12'4" (3.8 m) to 16'3" (4.9 m): 2 1⁄4" (57 mm), 22‑gauge struts From 16'4" (5 m) and more: 3" (76 mm), 22‑gauge struts

Hardware Systems

- For this reference, please see this page.

	2" Commercial Duty

Tracks Welded, made of galvanized steel and secured with mounting brackets	2" (50 mm), 14 gauge
Reinforcement for horizontal tracks. 2" x 2" (50 mm x 50 mm) steel bracket	13‑gauge
Hinges Galvanized steel	13‑gauge
Rollers Industrial type	With ball bearings
Springs Torsion type	10,000‑cycle spring supported by a 1" (25 mm) 14 gauge steel tube
Struts In galvanized steel, installed on door sections	From 12'4" (3.8 m) to 16'3" (4.9 m): 2 1⁄4" (57 mm), 22‑gauge struts From 16'4" (5 m) and more: 3" (76 mm), 22‑gauge struts

	2" Commercial Heavy Duty

Tracks Welded, made of galvanized steel and secured with mounting brackets	2" (50 mm), 13 gauge
Reinforcement for horizontal tracks. 2" x 2" (50 mm x 50 mm) steel bracket	Door weight: under 500 lb (225 kg) = 13 gauge
Hinges Galvanized steel	13‑gauge
Rollers Industrial type	With ball bearings
Springs Torsion type	10,000‑cycle spring supported by a 1" (25 mm) 2 solid zinc‑plated keyway shaft 2
Struts In galvanized steel, installed on door sections	From 12'4" (3.8 m) to 16'3" (4.9 m): 2 1⁄4" (57 mm), 22‑gauge struts From 16'4" (5 m) and more: 3" (76 mm), 22‑gauge struts

	3" Industrial

Tracks Welded, made of galvanized steel and secured with mounting brackets	2" (50 mm), 12 gauge
Reinforcement for horizontal tracks. 2" x 2" (50 mm x 50 mm) steel bracket	Door weight: under 650 lb (250 kg) = 13 gauge over 650 lb (250 kg) = 8 gauge 1
Hinges Galvanized steel	13‑gauge
Rollers Industrial type	With ball bearings
Springs Torsion type	10,000‑cycle spring supported by a 1" (25 mm) 2 solid zinc‑plated keyway shaft 2
Struts In galvanized steel, installed on door sections	From 12'4" (3.8 m) to 16'3" (4.9 m): 2 1⁄4" (57 mm), 22‑gauge struts From 16'4" (5 m) and more: 3" (76 mm), 22‑gauge struts

Hardware Systems

- For this reference, please see this page.

Hardware systems

McLaughlin Overhead Doors